Hydrothermal, Hydrothermal-Electrochemical and Electrochemical Synthesis of Highly Crystallized Barium Tungstate Films
- 1 March 1997
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 36 (3R) , 1216-1222
- https://doi.org/10.1143/jjap.36.1216
Abstract
Highly crystallized polycrystalline films of BaWO4 have been synthesized on tungsten metal substrates by hydrothermal-electrochemical and electrochemical methods from room temperature to 200 °C. The hydrothermal method did not produce a film because only discrete BaWO4 particles appeared on the tungsten substrate. The crystallization of BaWO4 was characterized by three-dimensional nucleation and growth behaviors. In the case of the electrochemical method, an amorphous tungsten oxide film formed after the BaWO4 film formation, while the hydrothermal-electrochemical method did not produce an amorphous film.Keywords
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